Component diversity is one of the important ways to improve the amorphous formation ability and soft magnetic properties of Fe based amorphous nanocrystalline alloys.Based on Nanomet alloy,this paper designs the composition through Fe based binary phase diagram and uses single roll strip casting method to prepare Fe80(AlxSiy)2.4B12.6P4Cu1(x/y=0,1/5,1/2,1/1,2/1)alloy.The influence of x/y changes on the amorphous for-mation ability,thermal stability,and soft magnetic properties of the alloy is explored.The research shows that the increase of x/y ratio can enhance the initial crystallization temperature and amorphous formation ability of the alloy.When x/y=1,the amorphous formation ability of Fe80(AlxSiy)2.4B12.6P4Cu1(x/y=0,1/5,1/2,1/1,2/1)alloy is higher,and the annealing temperature window is widened.After annealing at 500 ℃ for 1 min,it exhibits excellent soft magnetic properties,with coercivity of 1.27 A/m and magnetic permeability of 17551.Due to the Fe content remains unchanged,the doping of Al has a minor impact on the saturation magnet-ic induction of the alloy.
关键词
Fe基二元相图/非晶形成能力/非晶纳米晶/软磁性能
Key words
Fe based binary phase diagram/amorphous formation ability/amorphous nanocrystals/soft magnetic performance
维普
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